The Corner reports:

Mrs. Clinton has instructed me to reserve her rights to take this to the credentials committee.

Ace says supporters began chanting “Denver! Denver! Denver!”

Update: Statement from Ickes:

The Committee awarded to Senator Obama not only the delegates won by Uncommitted, but four of the delegates won by Senator Clinton. This decision violates the bedrock principles of our democracy and our Party.

We reserve the right to challenge this decision before the Credentials Committee and appeal for a fair allocation of Michigan’s delegates that actually reflect the votes as they were cast.

Update: Mark Halperin writes:

Vote prompts loud protests of “Denver!” and “Count our votes!” from many raucous observers.